Machine for reforming the flanges of can bodies



MACHINE FOR REFORMING THE FLANGES OF CAN BODIES Filed Nov. 5, 1926 3 Sheets-Sheet 1 July 2, 1929. H. A. FINK 1.719.759

mcnmn FOR REFORMING THE FLANGES 0F can BODIES Filed Nov. 5, 1926 3 Sheets-Sheet 2 July 2, 1929. A F|NK 1.719.759

MACHINE FOR REFORMING THE FLANGES OF CAN BODIES Filed Nov. 1926 3 Sheets-Sheet 3 Lnntoz a- ZQ AM Fatented July 2, 1929 UNITED STATES" PATENT OFFICE.

HENRY A. FINK, or OAK mum, ILLINOIS, ASSIGNOR TO CONTINENTAL OAN com- PANY, me, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

MACHINE FOR REFORMING THE FLANGES OF CAN BODIES.

Application filed November 5, 1926. Serial No. 146,443.

. The invention relates to new and useful improvements in machines for re-forming the flanges of can bodies. U

" Containers which are, to beclosejd double seaming a can end on to thesaine are provided with a fiangeby the can maker, and the end is double'seamed on. to 'rthecanlby thepacker. It is found that in the shipping'and handling of thecans, the flanges ozften become misshaped by b'ei'ngr'bent at certain portions, and these mis-shaped flanges arelikelyto. cause a leak when the end. is double seamed'on to the can body.

An object of the present invention is to provide a machine for reforming the flange on can bodies, which machine includes an inner die member on which the can having the flange to be re-formed is supported in inverted position, and' also includes half mold die members adapted to be moved intOjengagement with the'can body-above theflange', and wherein mechanism isjprovided for moving the half molds into operative relation to the canbody and,subfseqiiently 'ii'iovin' .the inner die member so as to. engage thefang'e between the die. members'an'd' straighten or re-form the mis-sh aping thereof.

A further object. of the invention is to provide a machine "of the above typewherein the half molds are'movedjnto and out or engagement with the can body, and the inner die member is raised and'lo wer ed carrying the flange of the can into engagement with the half mold die membersby 'a'rotating shaft and. operating cams formed 'thereon.

These and other objects will in part'beobfvious and will in partbe hereinafter more fully disclosed. y r

In the drawings which show by way of illustration one embodiment'of theinvention- Figure, 1 is aJview partly in sectionand partly in side elevation of the machine" em bodying the improvements; Fig. 2 is afront View of the machine;

" Fig. 3 is a sectional view onthe line 33 OfFig.1;- f

Fig. 4 is a view similarto FigL3, but showing the parts as moved topositionfor releasing the can body afterthe flange is re-formed; Fig. 5 is a sectional view on the line 5 ,5 of Fig. 3; v Fig. 6 is a. development of the cams which operate e par s-mi c and Fig.7 an end view of thesleeve congaining the cam raceways and eccentricjmem- The invention-is directed particularly to a flange .re-forming machine, and includes an of the can body and operates, in .the first instance, to round u the ean body when'it has slipped down over this inner. member. The inner member terminates at' th e lower portion in a ledge forming a die, which 00,- operates with other members in the straightening or re-forming offthe flange on the can body. Cooperating wit'h this inner di'e'mer'nber are half mold diemembers, mounted on swinging arms, which are. adapted to be brought into engagement with the can body after .it isplaced o'n 'the inner die member. These half molds engage the; can body above 'the'flange, and then the inner die member-is raised, so thattlie flange ispressedupon'both sides by theinner, die member cooperating with the half'mold die"i'nembers. This-reforms or straightensany bends or mis-shapin s'of the flange. '5: Y

' eferring more in detail {to the drawings,

the improved flange 're-formingdevic'e consists of a supportingbase 1, on which-is mounted two spaced standards 2-, 2. These standards Q, 2 carry bearings 3,3 in which the main operating'shaft 4 is mounted. "In

the present embodiment of the invention, this Operating. shaft 4 is rotated byl' means of a crank 5. It will be understood owever, that it maybe rotated by any suitable meansya'nd may be' .continuously rotated by power, if I "desiredl."

v Mounted'on each standard 2 is a'vertical guide bar 6. Mountedtoislide'fr'eely on each I guide bar 6 is a bracket 7. Disposed between the brackets 7 i's'a gpitman' 8. A connecting pin 9 is'secured to the brackets'7, 7 by set is placed down over this inner die member,

the tapered upper portion thereof will readily enter the can body and will round up the body. The flange rests on this horizontal shoulder 13, and the parts are further so shaped that if the flange is forced into contact with the horizontal: shoulder, it will be properly re-formed or re-shaped so as to be rolled into the double seam when the end is joined thereto.

Cooperating with the inner die member are two half mold die members 14 and 15. The half mold die member 15 is carried at the upper end of two spaced arms 16, 16. These arms 16, 16 are fixed to a shaft 17 mounted in suitable bearings 18, 18 carried by the supporting base 1. Each arm 16 carries an inwardly projectingjboss 19, and passing through the boss isa pin 20, and mounted on the inner end of the pin 20 is a roller 21. The other half mold 14. is similarly mounted on arms 16, 16, in turn carried by a shaft 17 mounted in bearings 18.carried by the supporting base 1. These arms are provided with mllers 22, 22. Mounted on the shaft 4 is a cam sleeve 23. This cam sleeve 23 is provided centrally thereof with an eccentric or crank 24;. The pitman 8 cooperates with this eccentric member 24, and as the main shaft is rotated, the inner die member will be raised and lowered in a vertical plane sliding on the guide bars 6, 6. At each. side, this eccentric member or sleeve is provided with cam raceways 2,5, 25.. These cam raceways are similarly shaped, but reverse, and the rollers 21 which are diametrically opposed, run in the cam raceway 25, while therollers 22 run in the camraceway 25'. As the shaft is rotated, the rollers will swing the arms 16 and-'16 so as to move the. half; mold die memhere into operative engagement with the can body and away therefrom.

The operation of myzdevice is as follows. The can with the mis-shaped flange is invertedand. placed on theinner die, member which rounds up the can body and supports the can body. The. mainshaft is then rotated, and as the shaft rotates, it first brings the half mold die members. into operative engagement with ,thecan bodies, after which the inner die member is raised, and this causes ftherflange tobepressed ,uponvby the, inner diemember and the half mold die members. The throw of the inner die member is sufficient to bring about a complete re-forming or straighteningof. the flange if it is bent or mis-shaped any way. The continued rotation of the shaft will lower the inner die member, and move the half, mold die members to their outer position, so that the can body can be lifted from the inner die member.

It is obvious that minor changes in the details of construction and the arrangement of the partsmay be made without departing from the spirit of the invention as set forth in the appended claims.

Having thus described the invention, what I claim as new and desire to secure by Letters-Patent, is

1. Aflange re-forming machine for metal cans comprising an inner die member on which the can is supported in inverted posi tion, half mold die members adapted to engage the can body above theflange, a shaft, a sleeve mounted on said shaft, said sleeve having an eccentric member connected to said inner die member so as to raise and lower the same when the shaft is rotated, and said sleeve having cam raceways adapted to move the half molds into operative engagement with the can body' and away from the can body, said eccentric member and said raceways being timed to that the inner die memher is raised after the half molds are closed about the'can body.

2'; A flange reformingmachine for metal cans comprising a supporting base, standards carried thereby, guide bars mounted in said standards, brackets slidable on said guide bars, and an inner die member attached to said brackets, means for raising and lowering the inner die member on said guide bars, half mold die members, swinging arms on which said halfmold die members are mounted, said half mold die members being disposed so as to move into cooperative relation with the can body above the flange thereon when said can body is inverted and placed on said inner die member.

3. A flange re-form'ing machine for metal can bodies comprising a supporting base, standards carried thereby, an actuating shaft mounted on said standards, guide' bars mounted on said standards, brackets slidable upon said guide bars, an eccentric member on said shaft, a pitman connecting said eccentric member to said brackets for raising and lowering the same, an inner die member mounted on said brackets on which an inverted can may be supported, and halfmold die members movable" toward and from the can body forencircling the can body' above the flange thereon and for cooperating with said inner die member in re-forming the flange on the can body.

4. A flange reforming machine for metal can bodies comprising afs'upporting base,

standards carried'thereby, an actuating shaft mounted on said standards, guide bars mounted on said standards, brackets slidable upon said guide bars, an eccentric memher on said shaft, a pitman connecting said eccentric member to said brackets for raising and lowering the same, an inner die'member mounted on said brackets on which an inverted can may be supported, half mold die members movable toward and from the can body for encircling the can body above the flange thereon and forcooperati'ng with said said half mold die members, and cams carried by said actuating shaft for oscillating said swinging arms for moving the die members into cooperative relation with the can body and away from the can body for releasing the same.

5. A flange re-forming machine for metal cans comprising an inner die member on which the can is supported in inverted position, half mold die members adapted to engage the can body above the flange, a shaft,

means actuated by said shaft and connected to said inner die member for raising and lOW- ering the same When the shaft is rotated, and means actuated by said shaft for moving the half molds into operative engagement with the can body and away from the can body, said actuating means being timed so that the inner die member is raised after the half molds are closed about the can body.

In testimony whereof, I afiix my signature.

HENRY A. FINK. 

